Sparko Petrol Saver
Does this high tech Sparko fuel saver really work? ۔
No working fuel consumption. The scam has been going on for years, including in Australia. If one wants to keep these things and expend one's energy in the process, that is fine. There are many ways to do this without being fooled. Accurate fit, cover removal and most importantly, new automotive technology.
Looks like no. Certainly not in salt)
Obviously no, if so, every manufacturer will do as they please.